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  1. Article ; Online: Comparison of Postoperative Respiratory Function Between Patients After Thoracoscopic and Open Lobectomy.

    Ishimaru, Tetsuya / Kanamori, Yutaka / Fujino, Akihiro / Yoneda, Akihiro / Fujiogi, Michimasa / Yamamoto, Yuki / Kano, Motohiro / Koinuma, Goro / Deie, Kyoichi / Kawashima, Hiroshi

    Journal of laparoendoscopic & advanced surgical techniques. Part A

    2024  Volume 34, Issue 4, Page(s) 376–379

    Abstract: Purpose: ...

    Abstract Purpose:
    MeSH term(s) Humans ; Infant ; Child ; Lung/surgery ; Pneumonectomy/adverse effects ; Pneumonectomy/methods ; Retrospective Studies ; Forced Expiratory Volume ; Vital Capacity ; Thoracotomy/adverse effects ; Thoracotomy/methods ; Lung Neoplasms/surgery ; Treatment Outcome ; Thoracic Surgery, Video-Assisted
    Language English
    Publishing date 2024-02-26
    Publishing country United States
    Document type Journal Article
    ZDB-ID 1381909-4
    ISSN 1557-9034 ; 1092-6429
    ISSN (online) 1557-9034
    ISSN 1092-6429
    DOI 10.1089/lap.2023.0244
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    Zs.A 3246: Show issues Location:
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  2. Article ; Online: Lack of health disparities during implementation of hospital-initiated care bundle among hospitalized adults with asthma.

    Akel, Mary J / Camargo, Carlos A / Fujiogi, Michimasa / Hasegawa, Kohei / Press, Valerie G

    Annals of allergy, asthma & immunology : official publication of the American College of Allergy, Asthma, & Immunology

    2023  Volume 132, Issue 4, Page(s) 534–536

    MeSH term(s) Adult ; Humans ; Patient Care Bundles ; Hospitalization ; Asthma/therapy ; Hospitals ; Health Inequities
    Language English
    Publishing date 2023-12-25
    Publishing country United States
    Document type Journal Article
    ZDB-ID 1228189-x
    ISSN 1534-4436 ; 0003-4738 ; 1081-1206
    ISSN (online) 1534-4436
    ISSN 0003-4738 ; 1081-1206
    DOI 10.1016/j.anai.2023.12.029
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  3. Article ; Online: ASO Author Reflections: Neoadjuvant Chemotherapy Does Not Affect Short-Term Outcomes After Breast Cancer Surgery.

    Konishi, Takaaki / Fujiogi, Michimasa / Tanabe, Masahiko / Seto, Yasuyuki / Yasunaga, Hideo

    Annals of surgical oncology

    2022  Volume 29, Issue 5, Page(s) 3011–3012

    MeSH term(s) Breast ; Breast Neoplasms/drug therapy ; Breast Neoplasms/surgery ; Female ; Humans ; Mastectomy ; Neoadjuvant Therapy
    Language English
    Publishing date 2022-01-07
    Publishing country United States
    Document type Journal Article
    ZDB-ID 1200469-8
    ISSN 1534-4681 ; 1068-9265
    ISSN (online) 1534-4681
    ISSN 1068-9265
    DOI 10.1245/s10434-021-11277-3
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    Zs.A 4042: Show issues Location:
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  4. Article: Outcomes of nonrejection in weakly fluorescent intestine detected by indocyanine green fluorescence angiography: a case series of infants.

    Hashizume, Naoki / Yoneda, Akihiro / Ozeki, Genta / Saito, Takeshi / Fujiogi, Michimasa / Kano, Motohiro / Yamamoto, Yuki / Ishimaru, Tetsuya / Kanamori, Yutaka / Fujino, Akihiro

    Surgical case reports

    2024  Volume 10, Issue 1, Page(s) 97

    Abstract: Background: Indocyanine green fluorescence angiography, a validated noninvasive imaging technique, is used to assess tissue vascularization. Here, we report three infant patients who underwent intraoperative indocyanine green fluorescence angiography ... ...

    Abstract Background: Indocyanine green fluorescence angiography, a validated noninvasive imaging technique, is used to assess tissue vascularization. Here, we report three infant patients who underwent intraoperative indocyanine green fluorescence angiography and suffered from postoperative complications caused by the lack of weak fluorescent intestinal resection and assessed residual intestinal perfusion.
    Case presentation: We observed the clinical characteristics and operative findings of patients treated from January 2022 to December 2022. Indocyanine green (0.5 mg/kg) was intravenously injected. The first patient was a 29-day-old girl with surgical necrotizing enterocolitis who underwent intraoperative indocyanine green fluorescence angiography at the first- and second-look operations. The proximal jejunum was difficult to diagnose to detect blood flow during the second-look operation. The second patient was a 32-day-old boy with surgical necrotizing enterocolitis. A part of the antimesenteric mucosa of the patient that exhibited weak fluorescence was preserved; however, it formed postoperative hematomas. The third patient was a 30-day-old boy with midgut volvulus. Weak fluorescence in the intestinal wall was observed 5 cm of the small intestine from the ileocecal valve was preserved, but it formed a stricture, and the patient underwent ileocecal resection after 30 days.
    Conclusions: Weak fluorescence in the intestine in infants by performing indocyanine green fluorescence angiography is associated with a high risk of non-recovering ischemic lesions and postoperative complications.
    Language English
    Publishing date 2024-04-24
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 2809613-7
    ISSN 2198-7793
    ISSN 2198-7793
    DOI 10.1186/s40792-024-01885-y
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  5. Article ; Online: Response to the Comment on "Effect of Minimally Invasive Esophagectomy Versus Open Esophagectomy for Esophageal Cancer".

    Sakamoto, Takashi / Fujiogi, Michimasa / Yasunaga, Hideo

    Annals of surgery

    2020  Volume 274, Issue 6, Page(s) e672–e673

    MeSH term(s) Esophageal Neoplasms/surgery ; Esophagectomy ; Humans ; Thoracoscopy
    Language English
    Publishing date 2020-01-23
    Publishing country United States
    Document type Letter ; Comment
    ZDB-ID 340-2
    ISSN 1528-1140 ; 0003-4932
    ISSN (online) 1528-1140
    ISSN 0003-4932
    DOI 10.1097/SLA.0000000000003782
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  6. Article ; Online: Author response to: Comment on: Stent as a bridge to surgery or immediate colectomy for malignant right colonic obstruction: propensity-scored, national database study.

    Sakamoto, Takashi / Fujiogi, Michimasa / Lefor, Alan Kawarai / Yasunaga, Hideo

    The British journal of surgery

    2020  Volume 107, Issue 11, Page(s) e553

    MeSH term(s) Colectomy ; Humans ; Intestinal Obstruction/surgery ; Stents
    Language English
    Publishing date 2020-08-21
    Publishing country England
    Document type Letter ; Research Support, Non-U.S. Gov't ; Comment
    ZDB-ID 2985-3
    ISSN 1365-2168 ; 0263-1202 ; 0007-1323 ; 1355-7688
    ISSN (online) 1365-2168
    ISSN 0263-1202 ; 0007-1323 ; 1355-7688
    DOI 10.1002/bjs.11795
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  7. Article ; Online: Identifying and predicting severe bronchiolitis profiles at high risk for developing asthma: Analysis of three prospective cohorts.

    Fujiogi, Michimasa / Dumas, Orianne / Hasegawa, Kohei / Jartti, Tuomas / Camargo, Carlos A

    EClinicalMedicine

    2022  Volume 43, Page(s) 101257

    Abstract: Background: Bronchiolitis is the leading cause of infants hospitalization in the U.S. and Europe. Additionally, bronchiolitis is a major risk factor for the development of childhood asthma. Growing evidence suggests heterogeneity within bronchiolitis. ... ...

    Abstract Background: Bronchiolitis is the leading cause of infants hospitalization in the U.S. and Europe. Additionally, bronchiolitis is a major risk factor for the development of childhood asthma. Growing evidence suggests heterogeneity within bronchiolitis. We sought to identify distinct, reproducible bronchiolitis subgroups (profiles) and to develop a decision rule accurately predicting the profile at the highest risk for developing asthma.
    Methods: In three multicenter prospective cohorts of infants (age < 12 months) hospitalized for bronchiolitis in the U.S. and Finland (combined
    Findings: We identified four bronchiolitis profiles (profiles A-D). Profile A (
    Interpretation: In three prospective cohorts of infants with bronchiolitis, we identified clinically distinct profiles and their longitudinal relationship with asthma risk. We also derived and validated an accurate prediction rule to determine the profile at highest risk. The current results should advance research into the development of profile-specific preventive strategies for asthma.
    Language English
    Publishing date 2022-01-04
    Publishing country England
    Document type Journal Article
    ISSN 2589-5370
    ISSN (online) 2589-5370
    DOI 10.1016/j.eclinm.2021.101257
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  8. Article ; Online: Machine learning in gastrointestinal surgery.

    Sakamoto, Takashi / Goto, Tadahiro / Fujiogi, Michimasa / Kawarai Lefor, Alan

    Surgery today

    2021  Volume 52, Issue 7, Page(s) 995–1007

    Abstract: Machine learning (ML) is a collection of algorithms allowing computers to learn directly from data without predetermined equations. It is used widely to analyze "big data". In gastrointestinal surgery, surgeons deal with various data such as clinical ... ...

    Abstract Machine learning (ML) is a collection of algorithms allowing computers to learn directly from data without predetermined equations. It is used widely to analyze "big data". In gastrointestinal surgery, surgeons deal with various data such as clinical parameters, surgical videos, and pathological images, to stratify surgical risk, perform safe surgery and predict patient prognosis. In the current "big data" era, the accelerating accumulation of a large amount of data drives studies using ML algorithms. Three subfields of ML are supervised learning, unsupervised learning, and reinforcement learning. In this review, we summarize applications of ML to surgical practice in the preoperative, intraoperative, and postoperative phases of care. Prediction and stratification using ML is promising; however, the current overarching concern is the availability of ML models. Information systems that can manage "big data" and integrate ML models into electronic health records are essential to incorporate ML into daily practice. ML is fundamental technology to meaningfully process data that exceeds the capacity of the human mind to comprehend. The accelerating accumulation of a large amount of data is changing the nature of surgical practice fundamentally. Artificial intelligence (AI), represented by ML, is being incorporated into daily surgical practice.
    MeSH term(s) Algorithms ; Artificial Intelligence ; Big Data ; Digestive System Surgical Procedures ; Humans ; Machine Learning ; Surgeons
    Language English
    Publishing date 2021-09-24
    Publishing country Japan
    Document type Journal Article ; Review
    ZDB-ID 1115435-4
    ISSN 1436-2813 ; 0941-1291
    ISSN (online) 1436-2813
    ISSN 0941-1291
    DOI 10.1007/s00595-021-02380-9
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    Zs.B 1077: Show issues Location:
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  9. Article ; Online: Association between body mass index and incidence of breast cancer in premenopausal women: a Japanese nationwide database study.

    Konishi, Takaaki / Fujiogi, Michimasa / Michihata, Nobuaki / Matsui, Hiroki / Tanabe, Masahiko / Seto, Yasuyuki / Yasunaga, Hideo

    Breast cancer research and treatment

    2022  Volume 194, Issue 2, Page(s) 315–325

    Abstract: Purpose: The association between body mass index (BMI) and the incidence of premenopausal breast cancer in the Asian population remains unclear. We investigated this association using data from a Japanese nationwide administrative database.: Methods: ...

    Abstract Purpose: The association between body mass index (BMI) and the incidence of premenopausal breast cancer in the Asian population remains unclear. We investigated this association using data from a Japanese nationwide administrative database.
    Methods: We retrospectively identified 785,703 females aged < 45 years with available health checkup data on BMI from January 2005 and April 2020 from a Japanese nationwide database. Cox proportional hazards model was used to estimate hazard ratios for breast cancer (total breast cancer, breast cancer with hormonal drug and trastuzumab administration, and breast cancer by age ≤ 45 years) associated with BMI recorded at the first health checkup. We conducted restricted cubic spline analysis without BMI categorization to investigate potential nonlinear associations with adjustment for backgrounds such as smoking and alcohol consumption.
    Results: Overall, the median BMI was 20.5 (interquartile range [IQR], 18.9-22.7) kg/m
    Conclusion: This study, which used a Japanese nationwide database, demonstrated that BMI was inversely associated with premenopausal breast cancer development in Japanese women, similar to that observed in Western women.
    MeSH term(s) Adult ; Body Mass Index ; Breast Neoplasms/complications ; Breast Neoplasms/etiology ; Female ; Humans ; Incidence ; Japan/epidemiology ; Middle Aged ; Premenopause ; Retrospective Studies ; Risk Factors ; Trastuzumab/therapeutic use
    Chemical Substances Trastuzumab (P188ANX8CK)
    Language English
    Publishing date 2022-06-04
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 604563-7
    ISSN 1573-7217 ; 0167-6806
    ISSN (online) 1573-7217
    ISSN 0167-6806
    DOI 10.1007/s10549-022-06638-9
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    Zs.A 1655: Show issues Location:
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  10. Article ; Online: Validity of operative information in Japanese administrative data: a chart review-based analysis of 1221 cases at a single institution.

    Konishi, Takaaki / Yoshimoto, Takako / Fujiogi, Michimasa / Yamana, Hayato / Tanabe, Masahiko / Seto, Yasuyuki / Yasunaga, Hideo

    Surgery today

    2022  Volume 52, Issue 10, Page(s) 1484–1490

    Abstract: Purpose: To evaluate the validity of operative information recorded in the Diagnosis Procedure Combination (DPC) database, a national inpatient database including administrative claims data.: Methods: We reviewed the medical charts of 1221 patients ... ...

    Abstract Purpose: To evaluate the validity of operative information recorded in the Diagnosis Procedure Combination (DPC) database, a national inpatient database including administrative claims data.
    Methods: We reviewed the medical charts of 1221 patients who underwent one of six surgeries (breast, esophageal, gastric, thyroid cancer surgery, appendectomy, or inguinal hernia repair) at a surgery department of a university hospital from April 2016 to March 2019. We compared operative information (type, date, laterality of procedure; type of anesthesia; transfusion; and duration of anesthesia) recorded in the DPC database with the information recorded in the medical charts.
    Results: The DPC data for type, date, laterality of surgery, and type of anesthesia were accurate in 99% of the reviewed patients. The sensitivity and specificity for identifying whether a patient received a transfusion procedure were 97.5% and 99.6%, respectively. Data regarding the duration of anesthesia in the DPC database were identical to those in medical chart records in 1114 of 1216 cases that received general or spinal anesthesia (91.5%). The duration of anesthesia in the DPC data was 53 min longer on average than the recorded operative time in the medical charts.
    Conclusion: The DPC database had high validity for operative information.
    MeSH term(s) Anesthesia ; Databases, Factual ; Hernia, Inguinal/surgery ; Humans ; Japan
    Language English
    Publishing date 2022-05-12
    Publishing country Japan
    Document type Journal Article ; Review
    ZDB-ID 1115435-4
    ISSN 1436-2813 ; 0941-1291
    ISSN (online) 1436-2813
    ISSN 0941-1291
    DOI 10.1007/s00595-022-02521-8
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